fairly rare: Down and scattered. Ir. Ó Duibheannaigh. Alsoas Ó Duibheamhna although this should be a separate name. There is confusion with the Devenneys of Donegal-Derry and the Devanes of Connacht. MIF & SGG.

Devany:

fairly numerous: Connacht generally. Ir. Ó Dubhánaigh. This name also appears in the Midlands and Limerick.

Devenney:

fairly numerous: Donegal, Derry, Tyrone etc. Ir. Ó Duibheannaigh. This form is used in the Donegal Gaeltacht but MacLysaght considers it should be similar to the Connacht name Ó Dubhánaigh.MIF & SGG.